I always interpreted the lyrics in this song in relation to the lyrics from the other songs such as shiver and parachutes. Both of those songs are about being in love with someone who doesn't know and either can't or won't have those same feelings back. "Trouble" is about what happens when those feelings finally come out and how it changes the friendship for the worse. He never meant to damage their relationship. He feels so guilty about it that he wishes he go back and never have developed those feelings for her in the first place. But you can't choose who you fall in love with. It's as if his emotions spun this web that he's caught in.
I always interpreted the lyrics in this song in relation to the lyrics from the other songs such as shiver and parachutes. Both of those songs are about being in love with someone who doesn't know and either can't or won't have those same feelings back. "Trouble" is about what happens when those feelings finally come out and how it changes the friendship for the worse. He never meant to damage their relationship. He feels so guilty about it that he wishes he go back and never have developed those feelings for her in the first place. But you can't choose who you fall in love with. It's as if his emotions spun this web that he's caught in.